/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:07:07,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:07:07,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:07:07,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:07:07,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:07:07,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:07:07,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:07:07,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:07:07,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:07:07,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:07:07,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:07:07,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:07:07,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:07:07,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:07:07,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:07:07,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:07:07,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:07:07,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:07:07,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:07:07,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:07:07,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:07:07,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:07:07,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:07:07,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:07:07,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:07:07,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:07:07,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:07:07,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:07:07,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:07:07,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:07:07,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:07:07,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:07:07,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:07:07,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:07:07,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:07:07,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:07:07,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:07:07,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:07:07,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:07:07,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:07:07,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:07:07,353 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:07:07,368 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:07:07,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:07:07,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:07:07,369 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:07:07,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:07:07,370 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:07:07,370 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:07:07,370 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:07:07,370 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:07:07,370 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:07:07,370 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:07:07,371 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:07:07,371 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:07:07,371 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:07:07,371 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:07,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:07:07,372 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:07:07,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:07:07,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:07:07,372 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:07:07,372 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:07:07,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:07:07,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:07:07,373 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:07:07,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:07:07,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:07:07,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:07:07,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:07:07,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:07:07,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:07:07,558 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:07:07,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:07:07,563 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:07:07,563 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:07:07,564 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:07:07,629 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_8FohUr/tmp/83b487c1c2aa49429c22d8205e13a12a/FLAG5f196a0c8 [2020-07-01 11:07:07,971 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:07:07,972 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:07:07,979 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_8FohUr/tmp/83b487c1c2aa49429c22d8205e13a12a/FLAG5f196a0c8 [2020-07-01 11:07:08,384 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_8FohUr/tmp/83b487c1c2aa49429c22d8205e13a12a [2020-07-01 11:07:08,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:07:08,397 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:07:08,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:07:08,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:07:08,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:07:08,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ecf9604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08, skipping insertion in model container [2020-07-01 11:07:08,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:07:08,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:07:08,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:07:08,652 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:07:08,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:07:08,683 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:07:08,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08 WrapperNode [2020-07-01 11:07:08,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:07:08,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:07:08,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:07:08,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:07:08,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:07:08,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:07:08,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:07:08,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:07:08,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:07:08,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:07:08,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:07:08,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:07:08,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:07:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:07:08,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:07:08,963 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:07:08,963 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:07:08,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:07:08 BoogieIcfgContainer [2020-07-01 11:07:08,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:07:08,968 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:07:08,968 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:07:08,970 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:07:08,971 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:07:08" (1/1) ... [2020-07-01 11:07:08,983 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 11:07:08,985 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:07:08,985 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:07:08,986 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:07:08,986 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:07:08,988 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:07:08,989 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:07:08,989 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:07:09,004 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:07:09,021 INFO L200 BlockEncoder]: SBE split 3 edges [2020-07-01 11:07:09,025 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:07:09,027 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:07:09,038 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:07:09,040 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 11:07:09,041 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:07:09,041 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:07:09,042 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:07:09,042 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:07:09,042 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 8 edges [2020-07-01 11:07:09,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:07:09 BasicIcfg [2020-07-01 11:07:09,043 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:07:09,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:07:09,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:07:09,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:07:09,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:07:08" (1/4) ... [2020-07-01 11:07:09,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163de37c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:07:09, skipping insertion in model container [2020-07-01 11:07:09,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (2/4) ... [2020-07-01 11:07:09,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163de37c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:07:09, skipping insertion in model container [2020-07-01 11:07:09,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:07:08" (3/4) ... [2020-07-01 11:07:09,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163de37c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:07:09, skipping insertion in model container [2020-07-01 11:07:09,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:07:09" (4/4) ... [2020-07-01 11:07:09,051 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:07:09,062 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:07:09,069 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:07:09,083 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:07:09,106 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:07:09,106 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:07:09,107 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:07:09,107 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:07:09,107 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:07:09,107 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:07:09,107 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:07:09,107 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:07:09,121 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-07-01 11:07:09,127 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:07:09,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-07-01 11:07:09,181 INFO L268 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-07-01 11:07:09,181 INFO L271 CegarLoopResult]: At program point L17-2(lines 11 21) the Hoare annotation is: true [2020-07-01 11:07:09,182 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:07:09,182 INFO L268 CegarLoopResult]: For program point L12(lines 12 20) no Hoare annotation was computed. [2020-07-01 11:07:09,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:07:09 BasicIcfg [2020-07-01 11:07:09,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:07:09,191 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:07:09,191 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:07:09,194 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:07:09,195 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:09,195 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:07:08" (1/5) ... [2020-07-01 11:07:09,196 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40b267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:07:09, skipping insertion in model container [2020-07-01 11:07:09,196 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:09,196 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:08" (2/5) ... [2020-07-01 11:07:09,197 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40b267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:07:09, skipping insertion in model container [2020-07-01 11:07:09,197 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:09,197 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:07:08" (3/5) ... [2020-07-01 11:07:09,198 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40b267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:07:09, skipping insertion in model container [2020-07-01 11:07:09,198 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:09,198 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:07:09" (4/5) ... [2020-07-01 11:07:09,198 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40b267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:07:09, skipping insertion in model container [2020-07-01 11:07:09,198 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:09,198 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:07:09" (5/5) ... [2020-07-01 11:07:09,200 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:07:09,228 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:07:09,229 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:07:09,229 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:07:09,229 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:07:09,229 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:07:09,229 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:07:09,229 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:07:09,230 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:07:09,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 11:07:09,251 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:07:09,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:09,252 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:09,258 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:07:09,259 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:07:09,259 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:07:09,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 11:07:09,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:07:09,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:09,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:09,260 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:07:09,260 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:07:09,265 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [32] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~range~0_1 20) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~range~0, ULTIMATE.start_main_~i~0] 3#L17-2true [2020-07-01 11:07:09,266 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true [31] L17-2-->L12: Formula: (and (<= 0 (+ v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~range~0_8)) (<= v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~range~0_8)) InVars {ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 6#L12true [45] L12-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_10 (* v_ULTIMATE.start_main_~i~0_11 (- 1))) (< v_ULTIMATE.start_main_~range~0_9 (+ v_ULTIMATE.start_main_~i~0_11 5))) InVars {ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 3#L17-2true [2020-07-01 11:07:09,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:09,272 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2020-07-01 11:07:09,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:09,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243925853] [2020-07-01 11:07:09,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:09,355 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:09,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:09,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1967, now seen corresponding path program 1 times [2020-07-01 11:07:09,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:09,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220973663] [2020-07-01 11:07:09,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:09,371 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:09,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:09,373 INFO L82 PathProgramCache]: Analyzing trace with hash 61549, now seen corresponding path program 1 times [2020-07-01 11:07:09,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:09,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566353241] [2020-07-01 11:07:09,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:09,389 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:09,465 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:09,466 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:09,466 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:09,466 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:09,466 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:09,466 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:09,466 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:09,467 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:09,467 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 11:07:09,467 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:09,467 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:09,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:09,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:09,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:09,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:09,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:09,648 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:09,649 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:09,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:09,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:09,665 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:09,665 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:09,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:09,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:09,706 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:09,706 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:09,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:09,742 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:09,746 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:09,747 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:09,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:09,780 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:09,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:09,819 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:10,031 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:07:10,034 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:10,034 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:10,034 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:10,034 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:10,035 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:07:10,035 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:10,035 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:10,035 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:10,035 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 11:07:10,035 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:10,035 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:10,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:10,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:10,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:10,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:10,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:10,132 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:10,138 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:10,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:07:10,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:10,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:10,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:10,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:10,155 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:10,155 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:10,162 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:10,196 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:07:10,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:10,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:10,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:10,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:10,206 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:10,206 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:10,216 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:07:10,227 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-07-01 11:07:10,227 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:10,235 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:07:10,240 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 11:07:10,240 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:07:10,241 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [1*ULTIMATE.start_main_~range~0 - 20 >= 0] [2020-07-01 11:07:10,277 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 11:07:10,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:10,333 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 11:07:10,334 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:10,348 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:07:10,348 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:10,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:07:10,377 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:07:10,382 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:07:10,384 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 3 states. [2020-07-01 11:07:10,498 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 3 states. Result 25 states and 52 transitions. Complement of second has 8 states. [2020-07-01 11:07:10,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 11:07:10,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:07:10,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2020-07-01 11:07:10,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:07:10,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:10,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:07:10,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:10,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:07:10,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:10,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 52 transitions. [2020-07-01 11:07:10,515 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2020-07-01 11:07:10,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 19 states and 39 transitions. [2020-07-01 11:07:10,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-07-01 11:07:10,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-07-01 11:07:10,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 39 transitions. [2020-07-01 11:07:10,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:07:10,523 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 39 transitions. [2020-07-01 11:07:10,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 39 transitions. [2020-07-01 11:07:10,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 12. [2020-07-01 11:07:10,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-01 11:07:10,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 23 transitions. [2020-07-01 11:07:10,566 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 23 transitions. [2020-07-01 11:07:10,566 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 23 transitions. [2020-07-01 11:07:10,566 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:07:10,567 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 23 transitions. [2020-07-01 11:07:10,567 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 11:07:10,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:10,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:10,568 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:07:10,568 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:07:10,568 INFO L794 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~range~0_1 20) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~range~0, ULTIMATE.start_main_~i~0] 81#L17-2 [31] L17-2-->L12: Formula: (and (<= 0 (+ v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~range~0_8)) (<= v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~range~0_8)) InVars {ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 77#L12 [2020-07-01 11:07:10,569 INFO L796 eck$LassoCheckResult]: Loop: 77#L12 [41] L12-->L17: Formula: (and (= v_ULTIMATE.start_main_~range~0_10 (+ v_ULTIMATE.start_main_~range~0_11 1)) (>= (+ v_ULTIMATE.start_main_~range~0_11 v_ULTIMATE.start_main_~i~0_13) 5) (>= v_ULTIMATE.start_main_~range~0_11 (+ v_ULTIMATE.start_main_~i~0_13 5)) (= v_ULTIMATE.start_main_~i~0_12 (+ v_ULTIMATE.start_main_~i~0_13 (- 1)))) InVars {ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_11, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~range~0, ULTIMATE.start_main_~i~0] 85#L17 [48] L17-->L17-2: Formula: (< 0 v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 76#L17-2 [31] L17-2-->L12: Formula: (and (<= 0 (+ v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~range~0_8)) (<= v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~range~0_8)) InVars {ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 77#L12 [2020-07-01 11:07:10,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:10,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1984, now seen corresponding path program 1 times [2020-07-01 11:07:10,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:10,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423331650] [2020-07-01 11:07:10,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:10,579 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:10,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:10,579 INFO L82 PathProgramCache]: Analyzing trace with hash 70711, now seen corresponding path program 1 times [2020-07-01 11:07:10,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:10,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621555681] [2020-07-01 11:07:10,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:10,595 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:10,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:10,596 INFO L82 PathProgramCache]: Analyzing trace with hash 59146264, now seen corresponding path program 1 times [2020-07-01 11:07:10,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:10,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261201503] [2020-07-01 11:07:10,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:10,611 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:10,653 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:10,653 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:10,653 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:10,653 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:10,653 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:10,654 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:10,654 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:10,654 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:10,654 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:07:10,654 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:10,654 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:10,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:10,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:10,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:10,732 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:10,732 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:10,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:10,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:10,743 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:10,743 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:10,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:10,780 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:10,784 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:10,785 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:10,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:10,823 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:10,862 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:10,862 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:10,973 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:07:10,976 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:10,976 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:10,976 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:10,976 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:10,976 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:07:10,976 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:10,976 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:10,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:10,977 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:07:10,977 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:10,977 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:10,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:10,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:10,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:11,050 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:11,051 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:11,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:07:11,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:11,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:11,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:11,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:11,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:11,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:11,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:11,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:07:11,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:11,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:11,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:11,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:11,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:07:11,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:07:11,110 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:11,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:07:11,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:11,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:11,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:11,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:11,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:11,149 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:11,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:11,153 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:07:11,158 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:07:11,158 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:11,163 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:07:11,163 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:07:11,164 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:07:11,164 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-01 11:07:11,194 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:07:11,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:11,214 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:07:11,214 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:11,221 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:07:11,221 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:11,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:07:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:11,267 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:07:11,267 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:11,269 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:07:11,270 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:07:11,270 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 23 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-07-01 11:07:11,370 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 23 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 87 states and 133 transitions. Complement of second has 24 states. [2020-07-01 11:07:11,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-07-01 11:07:11,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:07:11,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 26 transitions. [2020-07-01 11:07:11,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 11:07:11,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:11,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 11:07:11,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:11,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 11:07:11,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:11,375 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 87 states and 133 transitions. [2020-07-01 11:07:11,380 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2020-07-01 11:07:11,382 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 87 states to 66 states and 112 transitions. [2020-07-01 11:07:11,382 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-07-01 11:07:11,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-07-01 11:07:11,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 112 transitions. [2020-07-01 11:07:11,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:07:11,383 INFO L688 BuchiCegarLoop]: Abstraction has 66 states and 112 transitions. [2020-07-01 11:07:11,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 112 transitions. [2020-07-01 11:07:11,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 36. [2020-07-01 11:07:11,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-01 11:07:11,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 71 transitions. [2020-07-01 11:07:11,389 INFO L711 BuchiCegarLoop]: Abstraction has 36 states and 71 transitions. [2020-07-01 11:07:11,389 INFO L591 BuchiCegarLoop]: Abstraction has 36 states and 71 transitions. [2020-07-01 11:07:11,389 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:07:11,389 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 71 transitions. [2020-07-01 11:07:11,391 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2020-07-01 11:07:11,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:11,391 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:11,391 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:07:11,391 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:07:11,392 INFO L794 eck$LassoCheckResult]: Stem: 248#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~range~0_1 20) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~range~0, ULTIMATE.start_main_~i~0] 249#L17-2 [31] L17-2-->L12: Formula: (and (<= 0 (+ v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~range~0_8)) (<= v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~range~0_8)) InVars {ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 273#L12 [41] L12-->L17: Formula: (and (= v_ULTIMATE.start_main_~range~0_10 (+ v_ULTIMATE.start_main_~range~0_11 1)) (>= (+ v_ULTIMATE.start_main_~range~0_11 v_ULTIMATE.start_main_~i~0_13) 5) (>= v_ULTIMATE.start_main_~range~0_11 (+ v_ULTIMATE.start_main_~i~0_13 5)) (= v_ULTIMATE.start_main_~i~0_12 (+ v_ULTIMATE.start_main_~i~0_13 (- 1)))) InVars {ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_11, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~range~0, ULTIMATE.start_main_~i~0] 257#L17 [2020-07-01 11:07:11,392 INFO L796 eck$LassoCheckResult]: Loop: 257#L17 [47] L17-->L17-2: Formula: (> 0 v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 278#L17-2 [31] L17-2-->L12: Formula: (and (<= 0 (+ v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~range~0_8)) (<= v_ULTIMATE.start_main_~i~0_9 v_ULTIMATE.start_main_~range~0_8)) InVars {ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 256#L12 [41] L12-->L17: Formula: (and (= v_ULTIMATE.start_main_~range~0_10 (+ v_ULTIMATE.start_main_~range~0_11 1)) (>= (+ v_ULTIMATE.start_main_~range~0_11 v_ULTIMATE.start_main_~i~0_13) 5) (>= v_ULTIMATE.start_main_~range~0_11 (+ v_ULTIMATE.start_main_~i~0_13 5)) (= v_ULTIMATE.start_main_~i~0_12 (+ v_ULTIMATE.start_main_~i~0_13 (- 1)))) InVars {ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_11, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~range~0=v_ULTIMATE.start_main_~range~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~range~0, ULTIMATE.start_main_~i~0] 257#L17 [2020-07-01 11:07:11,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:11,393 INFO L82 PathProgramCache]: Analyzing trace with hash 61545, now seen corresponding path program 1 times [2020-07-01 11:07:11,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:11,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041915204] [2020-07-01 11:07:11,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:11,404 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:11,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:11,405 INFO L82 PathProgramCache]: Analyzing trace with hash 75960, now seen corresponding path program 1 times [2020-07-01 11:07:11,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:11,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006150468] [2020-07-01 11:07:11,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:11,415 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:11,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:11,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1833533264, now seen corresponding path program 1 times [2020-07-01 11:07:11,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:11,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44189833] [2020-07-01 11:07:11,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:11,430 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:11,466 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:11,467 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:11,467 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:11,467 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:11,467 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:11,468 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:11,468 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:11,468 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:11,468 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:07:11,468 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:11,468 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:11,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:11,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:11,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:11,562 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:11,563 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:11,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:11,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:11,572 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:11,572 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:11,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:11,605 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:11,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:11,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:11,664 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:11,664 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~range~0=6, ULTIMATE.start_main_~i~0=-1} Honda state: {ULTIMATE.start_main_~range~0=6, ULTIMATE.start_main_~i~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~range~0=0, ULTIMATE.start_main_~i~0=0}, {ULTIMATE.start_main_~range~0=0, ULTIMATE.start_main_~i~0=0}, {ULTIMATE.start_main_~range~0=1, ULTIMATE.start_main_~i~0=-1}] Lambdas: [1, 9, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:11,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:11,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:11,702 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:11,702 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:07:11,769 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:11,769 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:11,769 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:11,769 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:11,770 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:11,770 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:11,770 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:11,770 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:11,770 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 11:07:11,770 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:11,770 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:11,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:11,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:11,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:11,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:11,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:07:11,861 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:11,861 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:11,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:11,868 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:11,904 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:11,904 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:11,936 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:11,936 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~range~0=0} Honda state: {ULTIMATE.start_main_~i~0=-13, ULTIMATE.start_main_~range~0=21} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~range~0=0}, {ULTIMATE.start_main_~i~0=-1, ULTIMATE.start_main_~range~0=1}, {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~range~0=0}] Lambdas: [0, 1, 2] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:11,968 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:11,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:11,972 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:11,972 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:12,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:12,005 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:12,009 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:12,009 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:12,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:12,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:12,045 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:12,045 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:12,077 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:12,077 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:12,081 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:12,081 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:07:12,121 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:07:12,122 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:07:12,123 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:07:12,123 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:07:12,124 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:07:12,124 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:07:12,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:07:12 BasicIcfg [2020-07-01 11:07:12,135 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:07:12,137 INFO L168 Benchmark]: Toolchain (without parser) took 3739.47 ms. Allocated memory was 649.6 MB in the beginning and 753.9 MB in the end (delta: 104.3 MB). Free memory was 562.8 MB in the beginning and 636.8 MB in the end (delta: -74.0 MB). Peak memory consumption was 223.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:12,138 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:07:12,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.30 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 562.8 MB in the beginning and 646.0 MB in the end (delta: -83.2 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:12,139 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.96 ms. Allocated memory is still 682.6 MB. Free memory was 646.0 MB in the beginning and 644.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:12,140 INFO L168 Benchmark]: Boogie Preprocessor took 19.61 ms. Allocated memory is still 682.6 MB. Free memory was 644.6 MB in the beginning and 643.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:12,140 INFO L168 Benchmark]: RCFGBuilder took 228.92 ms. Allocated memory is still 682.6 MB. Free memory was 643.3 MB in the beginning and 628.9 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:12,141 INFO L168 Benchmark]: BlockEncodingV2 took 75.05 ms. Allocated memory is still 682.6 MB. Free memory was 628.9 MB in the beginning and 623.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:12,141 INFO L168 Benchmark]: TraceAbstraction took 146.53 ms. Allocated memory is still 682.6 MB. Free memory was 622.2 MB in the beginning and 614.0 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:12,142 INFO L168 Benchmark]: BuchiAutomizer took 2943.81 ms. Allocated memory was 682.6 MB in the beginning and 753.9 MB in the end (delta: 71.3 MB). Free memory was 614.0 MB in the beginning and 636.8 MB in the end (delta: -22.8 MB). Peak memory consumption was 242.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:12,146 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 285.30 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 562.8 MB in the beginning and 646.0 MB in the end (delta: -83.2 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.96 ms. Allocated memory is still 682.6 MB. Free memory was 646.0 MB in the beginning and 644.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.61 ms. Allocated memory is still 682.6 MB. Free memory was 644.6 MB in the beginning and 643.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 228.92 ms. Allocated memory is still 682.6 MB. Free memory was 643.3 MB in the beginning and 628.9 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 75.05 ms. Allocated memory is still 682.6 MB. Free memory was 628.9 MB in the beginning and 623.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 146.53 ms. Allocated memory is still 682.6 MB. Free memory was 622.2 MB in the beginning and 614.0 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2943.81 ms. Allocated memory was 682.6 MB in the beginning and 753.9 MB in the end (delta: 71.3 MB). Free memory was 614.0 MB in the beginning and 636.8 MB in the end (delta: -22.8 MB). Peak memory consumption was 242.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function i and consists of 5 locations. One nondeterministic module has affine ranking function i and consists of 6 locations. The remainder module has 36 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 37 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 36 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 40 SDslu, 0 SDs, 0 SdLazy, 87 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax155 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf103 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 17]: Nontermination argument in form of an infinite program execution. [2020-07-01 11:07:12,156 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:07:12,156 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:07:12,156 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:07:12,157 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:07:12,157 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:07:12,157 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:07:12,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:07:12,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:07:12,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:07:12,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:07:12,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:07:12,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {range=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57a43d12=0, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=0} State at position 1 is {range=21, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57a43d12=0, ~unnamed0~0~true=1, \result=0, ~unnamed0~0~false=0, i=-13} For i>1, the state at position i is {range=21 + sum_{k=0}^i 1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57a43d12=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, i=-13 + sum_{k=0}^i -1} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [0, 1, 2] Mus: [0, 1] - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int range; [L8] i = __VERIFIER_nondet_int() [L9] range = 20 [L11] COND TRUE -range <= i && i <= range [L12] COND FALSE !(range-i < 5 || range+i < 5) [L15] range = range+1 [L16] i = i-1 Loop: [L17] COND FALSE !(i == 0) [L11] COND TRUE -range <= i && i <= range [L12] COND FALSE !(range-i < 5 || range+i < 5) [L15] range = range+1 [L16] i = i-1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 11:07:05.111 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_8FohUr/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:07:12.386 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check